Ultra-fast x-ray Thomson scattering measurements of insulator-metal transition in shock-compressed matter

Kritcher, A; Neumayer, P; Castor, J; Doppner, T; Falcone, R W; Landen, O L; Lee, H J; Lee, R W; Morse, E C; Ng, A; Pollaine, S; Price, D; Glenzer, S H

Title: Ultra-fast x-ray Thomson scattering measurements of insulator-metal transition in shock-compressed matter

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Abstract

Spectrally resolved scattering of ultra-short pulse laser-generated K-{alpha} x rays has been applied to measure the heating and compression of shocked solid-density lithium hydride. Two shocks launched by a nanosecond laser pulse coalesce yielding pressures of 400 gigapascals. The evolution of the intensity of the elastic (Rayleigh) scattering component indicates rapid heating to temperatures of 25,000 K on a 100 ps time scale. At shock coalescence, the scattering spectra show the collective plasmon oscillations indicating the transition to the dense metallic plasma state. The plasmon frequency determines the material compression, which is found to be a factor of three thereby reaching conditions in the laboratory important for studying astrophysics phenomena.

Authors:: Kritcher, A; Neumayer, P; Castor, J; Doppner, T; Falcone, R W; Landen, O L; Lee, H J; Lee, R W; Morse, E C; Ng, A; Pollaine, S; Price, D; Glenzer, S H

Publication Date:: Fri May 16 00:00:00 EDT 2008

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 947233

Report Number(s):: LLNL-JRNL-404373
Journal ID: ISSN 0193-4511; SCEHDK; TRN: US0901827

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Journal Article

Journal Name:: Science

Additional Journal Information:: Journal Volume: 322; Journal Issue: 5898; Journal ID: ISSN 0193-4511

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION; ASTROPHYSICS; COALESCENCE; COMPRESSION; HEATING; LASERS; LITHIUM HYDRIDES; OSCILLATIONS; PLASMA; PLASMONS; SCATTERING; SPECTRA; THOMSON SCATTERING

Citation Formats


                    Kritcher, A, Neumayer, P, Castor, J, Doppner, T, Falcone, R W, Landen, O L, Lee, H J, Lee, R W, Morse, E C, Ng, A, Pollaine, S, Price, D, and Glenzer, S H. Ultra-fast x-ray Thomson scattering measurements of insulator-metal transition in shock-compressed matter.  United States: N. p., 2008. 
        Web.

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                    Kritcher, A, Neumayer, P, Castor, J, Doppner, T, Falcone, R W, Landen, O L, Lee, H J, Lee, R W, Morse, E C, Ng, A, Pollaine, S, Price, D, & Glenzer, S H. Ultra-fast x-ray Thomson scattering measurements of insulator-metal transition in shock-compressed matter.  United States.

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                    Kritcher, A, Neumayer, P, Castor, J, Doppner, T, Falcone, R W, Landen, O L, Lee, H J, Lee, R W, Morse, E C, Ng, A, Pollaine, S, Price, D, and Glenzer, S H. 2008.  
        "Ultra-fast x-ray Thomson scattering measurements of insulator-metal transition in shock-compressed matter".  United States.  https://www.osti.gov/servlets/purl/947233.

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@article{osti_947233,

  title        = {Ultra-fast x-ray Thomson scattering measurements of insulator-metal transition in shock-compressed matter},

  author       = {Kritcher, A and Neumayer, P and Castor, J and Doppner, T and Falcone, R W and Landen, O L and Lee, H J and Lee, R W and Morse, E C and Ng, A and Pollaine, S and Price, D and Glenzer, S H},

  abstractNote = {Spectrally resolved scattering of ultra-short pulse laser-generated K-{alpha} x rays has been applied to measure the heating and compression of shocked solid-density lithium hydride. Two shocks launched by a nanosecond laser pulse coalesce yielding pressures of 400 gigapascals. The evolution of the intensity of the elastic (Rayleigh) scattering component indicates rapid heating to temperatures of 25,000 K on a 100 ps time scale. At shock coalescence, the scattering spectra show the collective plasmon oscillations indicating the transition to the dense metallic plasma state. The plasmon frequency determines the material compression, which is found to be a factor of three thereby reaching conditions in the laboratory important for studying astrophysics phenomena.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/947233},
  journal      = {Science},

  issn         = {0193-4511},

  number       = 5898,

  volume       = 322,

  place        = {United States},

  year         = {Fri May 16 00:00:00 EDT 2008},

  month        = {Fri May 16 00:00:00 EDT 2008}

}

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